Question 1

What is acceleration?

Accepted Answer

Acceleration is the rate of change of velocity with respect to time. It is a vector quantity measured in meters per second squared (m/s²). Positive acceleration means speeding up in the direction of motion, while negative acceleration (deceleration) means slowing down.

Question 2

What is the difference between acceleration and velocity?

Accepted Answer

Velocity describes how fast an object is moving and in what direction, while acceleration describes how quickly the velocity itself is changing. An object can have a high velocity but zero acceleration if it is moving at constant speed in a straight line.

Question 3

Can acceleration be negative?

Accepted Answer

Yes. Negative acceleration (often called deceleration) occurs when an object slows down. For example, when you apply the brakes in a car, the acceleration is negative because the velocity is decreasing over time.

Question 4

What is the acceleration due to gravity?

Accepted Answer

On Earth's surface, the acceleration due to gravity is approximately 9.81 m/s² (often rounded to 9.8 or 10 m/s²). This means a freely falling object increases its velocity by about 9.81 m/s every second, ignoring air resistance.

Question 5

How is acceleration related to force?

Accepted Answer

According to Newton's Second Law, F = ma, so acceleration equals force divided by mass (a = F/m). A larger force produces a greater acceleration, and a larger mass requires more force to achieve the same acceleration.

Acceleration Calculator (a = Δv / Δt)

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